Brake shoe support, brake beam and bogie

Abstract

The present invention provides a brake shoe support, a brake beam and a bogie, wherein a slider is provided on the outside of the brake shoe support, a slot is provided on the outside of the slider, a pulley is provided in the slot, and the pulley at least partially protrudes outwardly and is provided in the slot. With the above structure, the slider can be inserted into the slide slot of the bogie side frame, and the outside of the slider contacts the bottom of the slide slot through the pulley. During the process of braking and relieving the brake shoe support, if the brake shoe support moves laterally, the pulley can convert the sliding friction between the slider and the slide slot into rolling friction, thereby reducing the friction resistance between the brake shoe support and the bogie, so that the movement of the brake shoe support at both ends of the brake beam is kept consistent, and the brake beam is prevented from getting stuck.

Description

Technical Field

[0001] The invention relates to the technical field of railway vehicles, and in particular to a brake shoe support, a brake beam and a bogie. Background Art

[0002] The brake beam is an important part of the railway vehicle braking system. Its main function is to transmit the braking force to the wheels through the brake beam when the vehicle is braked, so that the vehicle stops moving.

[0003] The brake beam usually includes a frame and brake shoe supports arranged at both ends of the frame. A slider is arranged on the outside of the brake shoe support, which can be inserted into the slide groove of the bogie side frame to make the brake shoe support and the slide groove slidingly connected. During the braking and release of the brake shoe support, the brake beam usually moves laterally. At this time, the end of the slider slides and rubs against the bottom of the slide groove, generating friction resistance, which may cause the brake shoe supports at both ends of the brake beam to move inconsistently, causing the brake beam to get stuck, making the braking and release functions ineffective, and causing safety accidents.

[0004] Therefore, how to provide a brake beam that does not cause the problem of jamming is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a brake beam which does not suffer from binding problems.

[0006] To solve the above technical problems, the present invention provides a brake shoe support, wherein a slider portion is disposed on the outer side of the brake shoe support, a slot is disposed on the outer side of the slider portion, a pulley is disposed in the slot, and the pulley at least partially protrudes outwardly from the slot.

[0007] With the above structure, the slider part can be inserted into the slide groove of the bogie side frame, and the outer side of the slider part contacts the bottom of the slide groove through the pulley. During the process of braking and releasing the brake shoe, if the brake shoe supports move laterally, the pulley can convert the sliding friction between the slider part and the slide groove into rolling friction, thereby reducing the friction resistance between the brake shoe supports and the bogie, so that the movement of the brake shoe supports at both ends of the brake beam remains consistent, thereby preventing the brake beam from getting stuck.

[0008] Optionally, the slider portion includes a slider and a slider sleeve, the slot is arranged on the outside of the slider, the slider sleeve is sleeved with the slider, and the outside is hollowed out to expose at least a portion of the pulley.

[0009] Optionally, the upper and lower peripheral walls of the slider sleeve are provided with corresponding positioning holes, and the slider is provided with mounting holes corresponding to the positioning holes, and fasteners can pass through the positioning holes and the mounting holes to fix the slider sleeve to the slider.

[0010] Optionally, the pulley axis is provided with a through hole, and the fastener can pass through the through hole, so that the pulley rotates around the fastener.

[0011] Optionally, the sliding block and the brake shoe support are integrally formed.

[0012] Optionally, a rotating shaft is further included in the slot, and a through hole is provided at the axis of the pulley. The pulley can be sleeved on the rotating shaft through the through hole and rotate around the rotating shaft.

[0013] The present invention also provides a brake beam, comprising a frame, a support and a clip, wherein the frame is an isosceles triangle structure, the support and the clip are fixedly connected and supported between the top corner and the bottom edge of the frame, and brake shoe supports are provided at both ends of the frame, and the brake shoe supports are the brake shoe supports described above.

[0014] The present invention also provides a bogie, comprising a brake beam, which is the brake beam described above; and a slide groove, wherein when the brake beam contacts the wheel for braking or releasing the brake, the brake shoe supports contact the bottom of the slide groove through a pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a first implementation mode of a brake shoe support provided in an embodiment of the present invention;

[0016] Figure 2 yes Figure 1 Exploded diagram of

[0017] Figure 3 yes Figure 1 The structural diagram of the middle slider;

[0018] Figure 4 is a structural schematic diagram of a second implementation manner of a brake shoe support provided in an embodiment of the present invention;

[0019] Figure 5 yes Figure 1 A schematic diagram of the structure of the middle slider sleeve;

[0020] Figure 6 yes Figure 1 Schematic diagram of the structure of the middle pulley;

[0021] Figure 7 yes Figure 4 Schematic diagram of the structure of the middle pulley;

[0022] Figure 8 yes Figure 1 Side view of

[0023] Fig. 9 yes Figure 1 Schematic diagram of the forces acting on the middle brake shoe support;

[0024] Fig.10 is a schematic structural diagram of a brake beam provided by an embodiment of the present invention;

[0025] Fig.11 It is a schematic structural diagram of a bogie provided in an embodiment of the present invention.

[0026] Figure 1-11 The reference numerals in the figures are described as follows:

[0027] 1 frame, 2 brake shoe support, 21 slider portion, 211 slot, 22 pulley, 221 through hole, 23 slider, 231 mounting hole, 24 slider sleeve, 241 positioning hole, 25 fastener, 26 rotating shaft, 3 pillars, 4 clips. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Please refer to Figure 1-9 , Figure 1 It is a structural schematic diagram of a first implementation mode of a brake shoe support provided in an embodiment of the present invention; Figure 2 yes Figure 1 Exploded diagram of Figure 3 yes Figure 1 The structural diagram of the middle slider; Figure 4 is a structural schematic diagram of a second implementation manner of a brake shoe support provided in an embodiment of the present invention; Figure 5 yes Figure 1 A schematic diagram of the structure of the middle slider sleeve; Figure 6 yes Figure 1 Schematic diagram of the structure of the middle pulley; Figure 7 yes Figure 4 Schematic diagram of the structure of the middle pulley; Figure 8 yes Figure 1 Side view of Fig. 9 yes Figure 1 Schematic diagram of the forces acting on the middle brake shoe support.

[0030] An embodiment of the present invention provides a brake shoe support, wherein a slider portion 21 is provided on the outer side of the brake shoe support 2, a slot 211 is provided on the outer side of the slider portion 21, a pulley 22 is provided in the slot 211, and the pulley 22 at least partially protrudes from the slot 211, wherein the outer side refers to the side of the brake shoe support 2 away from the frame 1.

[0031] With the above structure, the slider portion 21 can be inserted into the slide groove of the bogie side frame, and the outer side of the slider portion 21 contacts the bottom of the slide groove through the pulley 22. During the braking and braking relief process of the brake shoe support 2, if the brake shoe support 2 moves laterally, the pulley 22 can convert the sliding friction between the slider portion 21 and the slide groove into rolling friction, thereby reducing the friction resistance between the brake shoe support 2 and the bogie, so that the movement of the brake shoe support 2 at both ends of the brake beam remains consistent, thereby preventing the brake beam from getting stuck.

[0032] Among them, the lateral movement direction of the brake shoe support 2 is as follows: Figure 1 , Figure 2 and Figure 8 As shown, the direction indicated by the arrow in the figure is the lateral movement direction of the brake shoe support 2, which is also the setting direction of the slide groove, as well as the length direction and movement direction of the entire vehicle. When the slider portion 21 is inserted into the slide groove, if the brake shoe support 2 moves laterally, the slider portion 21 can slide inside the slide groove with the brake shoe support 2, and the pulley 22 contacts the bottom of the slide groove, so that rolling friction is generated between the slider portion 21 and the slide groove.

[0033] Please refer to Figure 1 The pulley 22 is horizontally arranged inside the slot 211 and can rotate inside the slot 211. The pulley 22 is at least partially protruding from the slot 211, which means that at least the outermost part of the pulley 22 extends out of the slot 211, so that when the slider portion 21 is inserted into the slide groove, the outermost part of the pulley 22 can first contact the bottom of the slide groove, and when the brake shoe support 2 moves laterally, the pulley 22 can convert the sliding friction between the slider portion 21 and the slide groove into rolling friction.

[0034] In this embodiment, the slider portion 21 includes a slider 23 and a slider sleeve 24 . The slot 211 is disposed on the outer side of the slider 23 . The slider sleeve 24 sleeves the slider 23 , and the outer side is hollowed out to expose at least a portion of the pulley 22 .

[0035] Specific as Figure 1 and Figure 2 As shown, the slider sleeve 24 is covered on the circumferential outer surface of the slider 23. When the slider portion 21 is inserted into the slide groove, the slider sleeve 24 can replace the slider 23 in contact with the side wall of the slide groove, so as to replace the slider 23 in friction with the side wall of the slide groove when the brake shoe support 2 moves laterally, thereby protecting the slider 23 from wear.

[0036] like Figure 5 As shown, the outer side of the slider sleeve 24 needs to be hollowed out to allow the pulley 22 to leak out and contact the bottom of the slide groove without interfering with the pulley 22, thereby preventing the pulley 22 from rubbing against the outer edge of the slider sleeve 24 and causing the pulley 22 to be unable to rotate.

[0037] The slider sleeve 24 should be made of a material with high strength, good wear resistance and low friction coefficient to increase its own service life and reduce the sliding friction between the brake shoe support 2 and the bogie. Of course, the present invention does not limit the specific material of the slider sleeve 24, as long as it can protect the slider 23 to prevent the slider 23 from wearing.

[0038] In this embodiment, the upper and lower peripheral walls of the slider sleeve 24 are provided with corresponding positioning holes 241, and the slider 23 is provided with a mounting hole 231 opposite to the positioning hole 241. The fastener 25 can pass through the positioning hole 241 and the mounting hole 231 to fix the slider sleeve 24 to the slider 23. This connection method has a low cost, and in the subsequent inspection and maintenance process, the slider sleeve 24 can be easily disassembled and assembled on the slider 23, which is convenient for the replacement of the slider sleeve 24.

[0039] Specifically, in this embodiment, the fastener 25 is a rivet, which can pass through the two positioning holes 241 of the slider sleeve 24 and the mounting hole 231 of the slider 23, so that the slider sleeve 24 is sleeved and fixed on the slider 23, and the slider sleeve 24 is limited. Of course, the fastener 25 can also be other structures besides rivets, and the present invention is not limited to this, as long as it can fix the slider sleeve 24 and the slider 23 through the positioning holes 241 and the mounting holes 231. For example, the fastener 25 can also be a screw, and the inner walls of the positioning holes 241 and the mounting holes 231 can be provided with corresponding threads, and the screw passes through the positioning holes 241 and the mounting holes 231 to fix the slider sleeve 24 and the slider 23.

[0040] It is understandable that the slider sleeve 24 and the slider 23 may be fixed in other ways besides the above, and the present invention is not limited thereto, as long as the slider sleeve 24 can be sleeved on the slider 23 and cover the circumferential outer surface of the slider 23 .

[0041] In this embodiment, the axis of the pulley 22 is provided with a through hole 221. If the axis position is the same as the position of the fastener 25, such as Figure 1 As shown, the pulley 22 can be sleeved with the fastener 25, and the fastener 25 can be used as a rotating shaft to rotate around the fastener 25; if the axis position is different from the position of the fastener 25, such as Figure 4 As shown, it is necessary to additionally set a rotating shaft 26 in the slot 211, and the pulley 22 can be sleeved with the rotating shaft 26, and use the rotating shaft 26 as the rotating shaft, and rotate around the rotating shaft 26. Of course, no matter which of the fastener 26 and the rotating shaft 26 is used as the rotating shaft of the pulley 22, it should be ensured that the outermost side of the pulley 22 can protrude from the slot 211.

[0042] The overall structure of the pulley 22 can be as follows Figure 6 The column shape shown can also be Figure 7The spherical shape shown may also be other structures besides the above two. The present invention does not limit this. The specific structure may be freely selected according to the actual situation, as long as it can convert the sliding friction between the slider part 2 and the bottom of the slide groove into rolling friction.

[0043] In addition, according to the structure and size of the slider 23, the slot 211 and the pulley 22, multiple pulleys 22 can be arranged in the slot 211, and multiple rotating shafts can be arranged accordingly to share the pressure borne by each rotating shaft and prevent the rotating shaft from being damaged due to excessive pressure during the lateral movement of the brake shoe support 2.

[0044] In this embodiment, the slider 23 and the brake shoe support 2 are integrally formed. When the brake shoe support 2 contacts and brakes the wheel, part of the pressure will be shared between the slider portion 21 and the slide groove, so that the slider 23 bears the main pressure. If the connection strength between the slider 23 and the brake shoe support 2 is insufficient, cracks will be generated at the connection between the slider 23 and the brake shoe support 2, or even directly broken.

[0045] Please refer to Fig.10 , Fig.10 It is a schematic structural diagram of a brake beam provided in an embodiment of the present invention.

[0046] The present invention also provides a brake beam, comprising a frame 1, a pillar 3 and a clip 4, the frame 1 is an isosceles triangle structure, the pillar 3 and the clip 4 are fixedly connected and made between the top corner and the bottom edge of the frame 1, and brake shoe supports 2 are provided at both ends of the frame 1. The brake shoe support 2 is the brake shoe support 2 described above. Since the brake shoe support 2 already has the above technical effects, the brake beam including the brake shoe support 2 should also have the same technical effects, so it will not be repeated here.

[0047] Please refer to Fig.11 , Fig.11 It is a schematic structural diagram of a bogie provided in an embodiment of the present invention.

[0048] The present invention also provides a bogie, including a brake beam, which is the brake beam described above. Since the brake beam has the above technical effects, the bogie including the brake beam should also have the same technical effects, so it will not be repeated here.

[0049] Please refer to Figure 8 , during the braking and release process of the brake shoe support 2, Figure 8 The slide block 21 moves in the direction indicated by the middle arrow. Since the slide block 21 is inserted into the slide groove, the outer end thereof will generate friction with the slide groove, so that friction resistance is generated between the brake shoe support 2 and the bogie. Fig. 9 As shown, Fig. 9The direction of the middle arrow is the force direction of the outer end of the slider 21. At this time, the pulley 22 can convert the sliding friction between the slider 21 and the slide groove into rolling friction, reduce the friction resistance between the brake shoe support 2 and the bogie, and make the braking and braking relief performance of the brake beam better.

[0050] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A brake shoe support, characterized in that: A slider portion (21) is disposed on the outer side of the brake shoe support (2), a slot (211) is disposed on the outer side of the slider portion (21), a pulley (22) is disposed in the slot (211), and the pulley (22) is at least partially protruded outwardly and disposed in the slot (211); The slider portion (21) comprises a slider (23) and a slider sleeve (24); the clamping groove (211) is arranged on the outer side of the slider (23); the slider sleeve (24) sleeves the slider (23) and is hollowed out on the outer side to expose at least a portion of the pulley (22); the slider sleeve (24) is provided with corresponding positioning holes (241) on the upper and lower peripheral walls; the slider (23) is provided with a mounting hole (231) corresponding to the positioning hole (241); the fastener (25) can pass through the positioning hole (241) and the mounting hole (231) to fix the slider sleeve (24) to the slider (23); the pulley (22) is provided with a through hole (221) on the axis; the fastener (25) can pass through the through hole (221) to enable the pulley (22) to rotate around the fastener (25); or, The brake shoe support (2) further comprises a rotating shaft (26) arranged in the clamping groove (211), the rotating shaft (26) extending up and down, the axis of the pulley (22) being provided with a through hole (221), the pulley (22) being able to sleeve the rotating shaft (26) through the through hole (221) and rotate around the rotating shaft (26).

2. The brake shoe support according to claim 1, characterized in that: The sliding block (23) and the brake shoe support (2) are integrally formed.

3. A brake beam, comprising a frame (1), a support (3) and a clip (4), wherein the frame (1) is an isosceles triangle structure, the support (3) and the clip (4) are fixedly connected and supported between the top corner and the bottom edge of the frame (1), characterized in that: Brake shoe supports (2) are provided at both ends of the frame (1), and the brake shoe supports (2) are the brake shoe supports (2) according to claim 1 or 2.

4. Bogie, characterized in that: It comprises a brake beam, which is the brake beam as claimed in claim 3; and a slide groove, and when the brake beam contacts the wheel for braking or releasing the braking, the brake shoe support (2) contacts the bottom of the slide groove through the pulley (22).

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